It is impossible, however, to do this because the earth does not revolve at a uniform rate of speed.
"Lectures in Navigation"
Ernest Gallaudet Draper
It can, therefore, be seen for a longer time during the 24 hours that it takes the earth to revolve on its axis.
"Lectures in Navigation"
Ernest Gallaudet Draper
"How frequently," he asked, when Hayes had cut him in, "do we find a mass revolving in such a manner that its poles revolve at right angles to its forward revolution, so there is no real pole?"
"Eight Keys to Eden"
Mark Irvin Clifton